CN205808935U - Atomic fluorescence spectrophotometer - Google Patents
Atomic fluorescence spectrophotometer Download PDFInfo
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- CN205808935U CN205808935U CN201620688343.6U CN201620688343U CN205808935U CN 205808935 U CN205808935 U CN 205808935U CN 201620688343 U CN201620688343 U CN 201620688343U CN 205808935 U CN205808935 U CN 205808935U
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- light
- fluorescence spectrophotometer
- atomic fluorescence
- emergent light
- detector
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- 230000005284 excitation Effects 0.000 claims abstract description 21
- 230000001154 acute effect Effects 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 11
- 230000003595 spectral effect Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000005283 ground state Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002189 fluorescence spectrum Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
This utility model provides a kind of atomic fluorescence spectrophotometer, and described atomic fluorescence spectrophotometer includes light path system, atomizer and analysis system；Described light path system includes: M excitation source, M >=2, and M ∈ Z, and the characteristic spectral line of the emergent light of described M excitation source corresponds respectively to element to be measured；Described emergent light is irradiated to the same area in atomizer flame, and emergent light when inciding described the same area is non-to be in the same cross section being perpendicular to flame kernel axis；Detector, the fluorescence that angle is acute angle or right angle incided between the emergent light of described the same area is converted to the signal of telecommunication, and is sent to described analysis system by described detector.This utility model has that detection elements is many, simple in construction, low cost and other advantages.
Description
Technical field
This utility model relates to fluorescence spectrum, particularly to atomic fluorescence spectrophotometer.
Background technology
The operation principle of atomic fluorescence spectrophotometer is: utilize potassium borohydride or sodium borohydride as reducing agent, sample is molten
Element reduction to be analyzed in liquid is volatility covalency gaseous hydride (or atom vapor), is then conducted into former by carrier gas
Sonization device, forms ground state atom at Ar-H flame Atom.The excitation source (generally hollow cathode modulation) of element to be measured
Flame is irradiated in the characteristic spectral line line focus launched, and excites the atom of element the most to be measured to produce fluorescence.Photomultiplier tube receives glimmering
Light is also converted to the signal of telecommunication, and integrated amplification etc. processes, data handling system obtain being directly proportional to concentration of element in sample survey
Amount result.
When in sample solution containing two kinds or during above element to be measured, atomic fluorescence spectrophotometer uses multi-channel measurement mould
Formula, uses the excitation source high frequency time-division illumination flame identical with number of active lanes (i.e. the number of element to be measured in sample solution),
And make photomultiplier tube read each channel signal value respectively by frequency corresponding with light source.Manifold Light Way is generally in the form of at water
The mode using light path to rotate tiling in plane realizes, the exciting light of multiple passages press certain angle (as 45 degree, 45 degree,
90 degree ,-90 degree, 135 degree ,-135 degree) incident flame, then receive fluorescence 0 degree position, the exciting light of all passages with finally
The fluorescence received is all on the cross section of flame kernel.Tile mode has a following shortcoming:
1. relevant with fluorescence reception angle due to the intensity of fluorescence, the inconsistent of several channel reception angles causes each passage
Concordance is poor, and the channel fluorescence efficiency of deviation 90 degree reception fluorescence drastically reduces；
2. due to more than 90 degree receive fluorescence time (as+135 degree and-135 degree), fluorescence can by the severe jamming of transmission light,
Therefore for ensureing that veiling glare is less, in general employing 90 degree, fluorescence is received；Owing to space limits, the number of channels can placed in 90 degree
It is usually no more than 4；
3. relatively big due to hollow cathode lamp drift, particularly mercury lamp, the drift of signal greatly have impact on stablizing of instrument
Property and detection limit；
4. the lamp of multichannel fluorophotometer is that tiling is scattered mode, needs to change lamp from upward-acting door, changes trouble.
Utility model content
In order to solve the deficiency in above-mentioned prior art, this utility model provides a kind of detection efficiency height, runs
The atomic fluorescence spectrophotometer stable, interchannel interference is few.
The purpose of this utility model is achieved through the following technical solutions:
A kind of atomic fluorescence spectrophotometer, described atomic fluorescence spectrophotometer includes light path system, atomizer and analysis system；
Described light path system includes:
M excitation source, M >=2, and M ∈ Z, the characteristic spectral line of the emergent light of described M excitation source corresponds respectively to treat
Survey element；Described emergent light is irradiated to the same area in atomizer flame, incides outgoing during described the same area
Light is non-to be in the same cross section being perpendicular to flame kernel axis；
Detector, the angle incided between the emergent light of described the same area is acute angle or right angle by described detector
Fluorescence is converted to the signal of telecommunication, and is sent to described analysis system.
According to above-mentioned atomic fluorescence spectrophotometer, it is preferable that incide described M excitation source during described the same area
Emergent light be in same plane, the angle of the central axis of this plane and described flame is zero or acute angle.
According to above-mentioned atomic fluorescence spectrophotometer, alternatively, described light path system farther includes:
M beam splitting module, described beam splitting module is for being divided into emergent light, ginseng by the light that each excitation source sends respectively
Compare light.
According to above-mentioned atomic fluorescence spectrophotometer, alternatively, described light path system farther includes:
Closing bundle module, described conjunction bundle module is combined for M is restrainted reference light.
According to above-mentioned atomic fluorescence spectrophotometer, alternatively, described bundle module of closing includes:
Transmission medium, the outfan of described transmission medium together；Close the reference light after bundle and be coupled into described transmission
Medium transmission, is received by described detector or the detector that separately sets afterwards, and the outfan of the detector separately set connects described analysis
System.
According to above-mentioned atomic fluorescence spectrophotometer, it is preferable that the normal of the receiving plane of described detector with incide described
The angle between emergent light during the same area is acute angle or right angle.
According to above-mentioned atomic fluorescence spectrophotometer, alternatively, described light path system farther includes:
Handover module, described handover module is for being selectively transmitted to described the same area by described emergent light.
This utility model additionally provides the method for work applying above-mentioned atomic fluorescence spectrophotometer.This utility model purpose is logical
Cross what techniques below scheme realized:
According to the method for work of above-mentioned atomic fluorescence spectrophotometer, described method of work comprises the following steps:
(A1) emergent light that excitation source sends is irradiated in flame；
(A2) element to be measured forms ground state atom in flame, and ground state atom absorbs described emergent light and is excited, and discharges
Go out fluorescence；
(A3) detector receives described fluorescence, knows the content of element to be measured in sample after analyzing.
Compared with prior art, this utility model has the beneficial effect that
The fluorescence reception direction of the most all passages is right angle (or acute angle) with the angle of the exciting light inciding flame, the party
The strongest to fluorescence, the veiling glare impact of the transmission light of stimulated luminescence is minimum；
2. can realize 4 or above passage is tested simultaneously, meet the demand of client's high efficiency test；
The most all passages are all parallel passages, can guarantee that passage consistency is good, and the interference between passage is little；
The most each passage has reference signal collection for deducting drift, and stability of instrument and detection limit are greatly improved, with
Time be also greatly shortened the preheating time required for instrument；
The excitation source of the most all passages is respectively mounted all on the panel of instrument, and structure design is simple, and it is convenient to change.
Accompanying drawing explanation
Referring to the drawings, disclosure of the present utility model will be easier to understand.Skilled addressee readily understands that
It is: these accompanying drawings are used only for illustrating the technical solution of the utility model, and are not intended to protection of the present utility model
Scope is construed as limiting.In figure:
Fig. 1 is the structure diagram of the light path system according to this utility model embodiment 1.
Detailed description of the invention
Fig. 1 and how real following description describe optional embodiment of the present utility model with teaching those skilled in the art
Execute and reproduce this utility model.In order to instruct technical solutions of the utility model, simplify or eliminated some conventional aspects.Ability
Field technique personnel should be appreciated that be derived from these embodiments modification or replace will be in the range of this utility model.This area skill
Art personnel should be appreciated that following characteristics can combine to form multiple modification of the present utility model in every way.Thus, this reality
It is not limited to following optional embodiment with novel, and is only limited by claim and their equivalent.
Embodiment 1:
The atomic fluorescence spectrophotometer of this utility model embodiment, described atomic fluorescence spectrophotometer includes:
Sampling system, atomizer, analysis system, these are all the state of the art, do not repeat them here；
Fig. 1 schematically illustrates the structure diagram of the light path system of this utility model embodiment, as it is shown in figure 1, described
Light path system includes:
M excitation source 1-4, such as hollow cathode lamp, M >=2, and M ∈ Z, the characteristic spectral line of the emergent light of described M light source
Correspond respectively to element to be measured；Described emergent light is irradiated to the same area in atomizer flame, incides described same
Emergent light during region is non-to be in the same cross section being perpendicular to flame kernel axis, as emergent light is in same comprising
The plane of described central axis or in being parallel to the plane of described central axis, or most emergent light is in this plane, minority
Emergent light and this interplanar have less angle, such as 3 degree, and 5 degree, 10 degree；Or emergent light is in same plane, this plane with
The angle of flame kernel axis is acute angle, such as 3 degree, and 5 degree, 10 degree；
M transflection mirror 5-8, as center has the lens of through hole, ratio transflection mirror etc., described transflection mirror is arranged on exciting light
Going out in light light path of source, thus separate emergent light, reference light；
Closing bundle module, described conjunction bundle module uses M group transmission medium 11-14, such as fibre bundle, is used for that M is restrainted transmission photosynthetic
Together, the outfan together 19 of transmission medium；The input of each group of transmission medium is arranged as circle；
Detector 22, such as photomultiplier tube, the folder that an only detector will be transferred between the emergent light in flame
Angle is that the fluorescence at acute angle or right angle is converted to the signal of telecommunication: the normal of the receiving plane of detector and being transferred between the emergent light in flame
Angle be acute angle or right angle, and be sent to described analysis system；
Reflecting mirror 21, this reflecting mirror is movably disposed on fluorescence light path, the reference of described reference light output end output
Light is reflected by described reflecting mirror, and reflection light is received by described detector；
Handover module, whether described handover module for controlling the unlatching of LASER Light Source, so that the outgoing of LASER Light Source
Light optionally injects the same area in the flame of atomizer.
The method of work of the above-mentioned atomic fluorescence spectrophotometer of this utility model embodiment, described method of work includes following step
Rapid:
(A1) by switching, it is irradiated in flame to the emergent light timesharing that excitation source sends；
(A2) element to be measured forms ground state atom in flame, and ground state atom absorbs described emergent light and is excited, and discharges
Go out fluorescence；
(A3) moving into described reflecting mirror, reference light is reflected by a reflector, and is received by a detector afterwards, thus for reference pair
According to, to correct drift；
Removing described reflecting mirror, detector receives described fluorescence, knows the content of element to be measured in sample after analyzing.
Embodiment 2:
The atomic fluorescence spectrophotometer of this utility model embodiment and method of work thereof, as different from Example 1:
Close bundle module to include: transflection mirror, reflecting mirror, utilize reflecting mirror by the reference luminous reflectance that separates to transflection mirror, thus
Realize the conjunction bundle of reference light.
Embodiment 3:
The atomic fluorescence spectrophotometer of this utility model embodiment, as different from Example 1:
Reflecting mirror replaces with transflection mirror, block body (or chopper), and described transflection mirror is fixed on described fluorescence light path, reference
Light incides on detector after being reflected by transflection mirror, and fluorescence is received by a detector through described transflection mirror；Block body sets movably
Put in reference light light path.
When block body is removed, detector gathers fluorescent and the reference light that flame kernel comes simultaneously；When block body is in the light
Time, only gather fluorescent, fluorescent and reference optical information can be obtained by software processes, by software processes reference
Light carries out detaining drift and processes fluorescent.
Embodiment 4:
The atomic fluorescence spectrophotometer of this utility model embodiment, as different from Example 1:
Using two detectors, one is used for receiving fluorescence, and another is for receiving the reference of reference light output end output
Light (without reflexing to the reflecting mirror of an only detector receiving fluorescence), the signal of telecommunication of output send analysis system.
Embodiment 5:
The atomic fluorescence spectrophotometer of this utility model embodiment and method of work thereof, as different from Example 1:
Whether handover module no longer controls the unlatching of excitation source, but arranges in light light path in going out of each excitation source
Removable block body, when needing the emergent light of this excitation source, reference light, what block body was placed in other excitation source goes out light light path
On to be in the light so that the emergent light of excitation source is optionally irradiated in flame.
Claims (7)
1. an atomic fluorescence spectrophotometer, described atomic fluorescence spectrophotometer includes light path system, atomizer and analysis system；Its
It is characterised by: described light path system includes:
M excitation source, M >=2, and M ∈ Z, the characteristic spectral line of the emergent light of described M excitation source corresponds respectively to unit to be measured
Element；Described emergent light is irradiated to the same area in atomizer flame, and emergent light when inciding described the same area is non-
It is in the same cross section being perpendicular to flame kernel axis；
Detector, the fluorescence that angle is acute angle or right angle that described detector will incide between the emergent light of described the same area
Be converted to the signal of telecommunication, and be sent to described analysis system.
Atomic fluorescence spectrophotometer the most according to claim 1, it is characterised in that: described when inciding described the same area
The emergent light of M excitation source is in same plane, and this plane is zero or acute angle with the angle of the central axis of described flame.
Atomic fluorescence spectrophotometer the most according to claim 1, it is characterised in that: described light path system farther includes:
M beam splitting module, described beam splitting module is for being divided into emergent light, reference by the light that each excitation source sends respectively
Light.
Atomic fluorescence spectrophotometer the most according to claim 3, it is characterised in that: described light path system farther includes:
Closing bundle module, described conjunction bundle module is combined for M is restrainted reference light.
Atomic fluorescence spectrophotometer the most according to claim 4, it is characterised in that: described bundle module of closing includes:
Transmission medium, the outfan of described transmission medium together；Close the reference light after bundle and be coupled into described transmission medium
Transmission, is received by described detector or the detector that separately sets afterwards, and the outfan of the detector separately set connects described analysis system.
Atomic fluorescence spectrophotometer the most according to claim 1, it is characterised in that: the normal of the receiving plane of described detector with
The angle between emergent light when inciding described the same area is acute angle or right angle.
Atomic fluorescence spectrophotometer the most according to claim 1, it is characterised in that: described light path system farther includes:
Handover module, described handover module is for being selectively transmitted to described the same area by described emergent light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688343.6U CN205808935U (en) | 2016-06-30 | 2016-06-30 | Atomic fluorescence spectrophotometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688343.6U CN205808935U (en) | 2016-06-30 | 2016-06-30 | Atomic fluorescence spectrophotometer |
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| Publication Number | Publication Date |
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| CN205808935U true CN205808935U (en) | 2016-12-14 |
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| CN201620688343.6U Active CN205808935U (en) | 2016-06-30 | 2016-06-30 | Atomic fluorescence spectrophotometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018368A (en) * | 2016-06-30 | 2016-10-12 | 北京吉天仪器有限公司 | Atomic fluorescence spectrophotometer and working method thereof |
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2016
- 2016-06-30 CN CN201620688343.6U patent/CN205808935U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018368A (en) * | 2016-06-30 | 2016-10-12 | 北京吉天仪器有限公司 | Atomic fluorescence spectrophotometer and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IP01 | Partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W113176 Conclusion of examination: The patentee shall continue to maintain the validity of the patent on the basis of claim 1-5 filed by the patentee on January 05, 2018. Decision date of declaring invalidation: 20180511 Decision number of declaring invalidation: 35836 Denomination of utility model: Multi-element measurement atomic fluorescence photometer of continuous light source of energy-saving low-price tungsten wire ring furnace Granted publication date: 20161214 Patentee: Beijing Jitian Instrument Co.,Ltd. |